CN117254889A

CN117254889A - Beam information determining method and device and communication equipment

Info

Publication number: CN117254889A
Application number: CN202210647805.XA
Authority: CN
Inventors: 宋磊; 苏昕; 张鑫
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-12-19
Also published as: WO2023236612A1

Abstract

The invention provides a method and a device for determining beam information and communication equipment, and solves the problem that the existing beam indication method is difficult to apply to a RIS system or a relay system. The method of the invention comprises the following steps: the terminal acquires a plurality of QCL parameter configurations of the reference signal; the terminal determines at least one target QCL parameter in a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of network side equipment; the predefined rule or the indication of the network side device is determined according to an association of QCL parameters of the reference signal with transmission information, the transmission information comprising at least one of a transmission time unit, a scheduled transmission, a transmission channel and a transmission signal. The same reference signal in the invention can have different QCL parameters aiming at different time units, transmission, channels or signals, so that the terminal can select corresponding QCL parameters for different transmission paths in an RIS system or a relay system.

Description

Beam information determining method and device and communication equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining beam information, and a communication device.

Background

In a smart supersurface (Reconfigurable Intelligent Surface, RIS) system or relay system, the same reference signal may have a plurality of different beam information (e.g., the reference signal is transmitted via the network side and the RIS reflection or relay has different beam directions), and the plurality of beam information needs to be known to the terminal so that the terminal can receive or transmit the physical signal or physical channel using an appropriate filter. However, in the prior art, the terminal cannot distinguish different beam information of the same source reference signal, and when the same reference signal is transmitted by using different transmission paths in the RIS system or the relay system, the terminal cannot select an appropriate filter for transmitting or receiving according to the different transmission paths, so that the existing beam indication method cannot be well applied to the RIS system or the relay system.

Disclosure of Invention

The invention aims to provide a method and a device for determining beam information and communication equipment, so as to solve the problem that the existing beam indication method is difficult to apply to a RIS system or a relay system.

In order to achieve the above object, the present invention provides a method for determining beam information, including:

The terminal acquires a plurality of quasi-co-located QCL parameter configurations of a reference signal, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signal;

the terminal determines at least one target QCL parameter in a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of network side equipment;

wherein the predefined rule or the indication of the network side device is determined according to an association relationship between QCL parameters of the reference signal and transmission information, and the transmission information includes at least one of a transmission time unit, a scheduled transmission, a transmission channel and a transmission signal.

Optionally, the determining, by the terminal, at least one target QCL parameter among the QCL parameters of the reference signal according to a predefined rule, includes:

the terminal determines at least one target QCL parameter corresponding to at least one target transmission information from a plurality of QCL parameters of the reference signal according to the corresponding relation between the QCL parameters of the reference signal and the transmission information;

the target transmission information comprises transmission information associated with first transmission, the first transmission comprises transmission between the terminal and network side equipment and/or a first node, and the first node is used for transmitting with the terminal and/or the network side equipment.

Optionally, the transmission time unit in the transmission information is determined according to a resource transmission pattern or a slot format configured by the network side.

Optionally, each QCL parameter of the reference signal corresponds to one resource index information in the beam measurement report.

Optionally, the determining, by the terminal, at least one target QCL parameter from among the plurality of QCL parameters of the reference signal according to an instruction of the network side device includes:

the terminal determines at least one standard co-located QCL parameter from a plurality of QCL parameters of the reference signal according to QCL parameter indication information of the network side device, where the QCL parameter indication information includes one or more QCL parameter indexes of one QCL parameter type, or includes indexes of QCL parameters corresponding to at least two QCL parameter types, respectively, and each QCL parameter index corresponds to one QCL parameter.

Optionally, the QCL parameter indication information is used to indicate QCL parameter information in a TCI state of at least one transmission configuration indication in one code point.

Optionally, the method of the embodiment of the present invention further includes:

the terminal obtains the QCL parameter indication information through a TCI field or a QCL indication information field in downlink control information DCI.

the terminal obtains TCI indication information through a TCI domain, wherein the TCI indication information is used for indicating a TCI state configured for the terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the index of the QCL parameter is associated with resource index information in the beam measurement result.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different QCL parameters of the reference signal;

different resource index information corresponds to different transmission links of the reference signal;

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

a transmission link between a terminal and a first node, where the first node is configured to transmit with the terminal and/or the network side device;

and a transmission link between the terminal and the network side equipment and the first node.

the terminal performs beam measurement reporting according to a preset reporting mode according to the measurement resources of the reference signal on at least two measurement time units;

The preset reporting mode comprises at least one of the following steps:

reporting a beam measurement result corresponding to a first target measurement resource according to a target value of a plurality of measurement resources of the reference signal on each measurement time unit, wherein the target value is obtained according to the sum of values of target parameters corresponding to the plurality of measurement resources, the target parameters comprise at least one of layer 1 reference signal received power L1-RSRP and layer 1 signal to interference plus noise ratio L1-SINR, the target value corresponding to the first target measurement resource is positioned at the first N bits in a target ordering result, and the target ordering result is obtained after the target values of the plurality of measurement resources on the measurement time unit are ordered according to the order from big to small;

reporting a beam measurement result corresponding to a second target measurement resource, wherein a target parameter of the second target measurement resource on each measurement time unit is larger than a preset threshold; or (b)

Reporting a beam measurement result corresponding to a third target measurement resource, wherein the at least two measurement time units comprise at least one reference measurement time unit, and the third target measurement resource is a measurement resource corresponding to the reference measurement time unit.

Optionally, in the method of the embodiment of the present invention, the indication of the network side device further includes: first information;

the first information is used for indicating one of the following:

a plurality of sets of TCI states, each set of TCI states corresponding to a transmission time unit or a hop link;

the system comprises a first group of TCI states and a regulation matrix codebook corresponding to the first group of TCI states, wherein the regulation matrix codebook is used for determining a second group of TCI states based on the first group of TCI states.

The embodiment of the invention also provides a method for determining the beam information, which comprises the following steps:

the method comprises the steps that network side equipment determines a plurality of quasi-co-located QCL parameter configurations of a reference signal, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signal;

the network side equipment indicates at least one target QCL parameter in a plurality of QCL parameters to the terminal;

the target QCL parameter indicated by the network side equipment is determined according to the association relation between the QCL parameter of the reference signal and the transmission information.

Optionally, the network side device indicates at least one target QCL parameter of the plurality of QCL parameters to the terminal, including:

the network side equipment indicates at least one target QCL parameter in a plurality of QCL parameters to the terminal through the QCL parameter indication information;

The QCL parameter indication information includes one or more QCL parameter indexes of one QCL parameter type, or includes indexes of QCL parameters corresponding to at least two QCL parameter types, where each QCL parameter index corresponds to one QCL parameter.

and the network side equipment sends the QCL parameter indication information through a TCI field or a QCL indication information field in the DCI.

the network side equipment sends TCI indication information through a TCI domain, wherein the TCI indication information is used for indicating a TCI state configured for a terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the index of the QCL parameter is associated with resource index information in the beam measurement report.

Optionally, the resource index information satisfies at least one of:

Different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

the network side equipment sends first information, wherein the first information is used for indicating one of the following:

Optionally, the network side device determines a plurality of quasi co-located QCL parameter configurations of the reference signal, including:

the network side equipment acquires beam measurement results of a plurality of measurement resources of the reference signal on at least two measurement time units;

and the network side equipment determines a plurality of quasi co-located QCL parameter configurations of the reference signal according to the beam measurement result, wherein the beam measurement result of each measurement time unit corresponds to one QCL parameter of the reference signal.

The embodiment of the invention also provides a device for determining the beam information, which is applied to the terminal and comprises a memory, a transceiver and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

acquiring a plurality of quasi co-located QCL parameter configurations of a reference signal through a transceiver, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signal;

determining at least one target QCL parameter among a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of a network side device;

Optionally, the processor further implements the following steps when executing the program:

determining at least one target QCL parameter corresponding to at least one target transmission information in a plurality of QCL parameters of the reference signal according to the corresponding relation between the QCL parameters of the reference signal and the transmission information;

according to QCL parameter indication information of network side equipment, at least one standard co-located QCL parameter is determined in a plurality of QCL parameters of the reference signal, wherein the QCL parameter indication information comprises one or more QCL parameter indexes of one QCL parameter type, or comprises indexes of QCL parameters respectively corresponding to at least two QCL parameter types, and each QCL parameter index corresponds to one QCL parameter.

The embodiment of the invention also provides a device for determining the beam information, which is applied to the network side equipment and comprises a memory, a transceiver and a processor:

determining a plurality of quasi co-located QCL parameter configurations of a reference signal, the QCL parameter configurations being used to configure a plurality of QCL parameters of the reference signal;

indicating at least one target QCL parameter of the plurality of QCL parameters to the terminal;

the target QCL parameter is determined according to an association relationship between the QCL parameter of the reference signal and transmission information, where the transmission information includes at least one of a transmission time unit, a scheduled transmission, a transmission channel, and a transmission signal.

indicating at least one target QCL parameter among a plurality of QCL parameters to a terminal by using the transceiver through the QCL parameter indication information;

The embodiment of the invention also provides a device for determining the beam information, which is applied to the terminal and comprises the following steps:

a fifth obtaining unit, configured to obtain a plurality of quasi co-located QCL parameter configurations of a reference signal, where the QCL parameter configurations are used to configure a plurality of QCL parameters of the reference signal;

a first determining unit, configured to determine at least one target QCL parameter from a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of a network side device;

The embodiment of the invention also provides a device for determining the beam information, which is applied to the network side equipment and comprises the following steps:

a second determining unit, configured to determine a plurality of quasi co-located QCL parameter configurations of a reference signal, where the QCL parameter configurations are configured to configure a plurality of QCL parameters of the reference signal;

an indication unit, configured to indicate at least one target QCL parameter from among the plurality of QCL parameters to the terminal;

An embodiment of the present invention also provides a processor-readable storage medium, where the processor-readable storage medium stores program instructions for causing the processor to perform the steps of the method for determining beam information as described above.

The technical scheme of the invention has at least the following beneficial effects:

in the embodiment of the present invention, the terminal determines at least one target QCL parameter from among a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of a network side device, where the at least one target QCL parameter is associated with a time unit, a scheduled transmission, a transmission channel or a transmission signal, so that the same reference signal (or a source reference signal) may have different QCL parameters for different time units, transmissions, channels or signals, so that the terminal may select a corresponding QCL parameter for different transmission paths in an RIS system or a relay system, that is, the method for determining beam information described above may be well applied to the RIS system or the relay system.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a block diagram of a network system to which embodiments of the present invention are applicable;

fig. 2 is a flow chart of a method for determining beam information according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing transmission corresponding to each time unit in the embodiment of the present invention;

FIG. 4 is a schematic view of beam pointing in an embodiment of the present invention;

FIG. 5 is a second diagram illustrating transmission corresponding to each time cell according to an embodiment of the present invention;

FIG. 6 is a third diagram illustrating transmission corresponding to each time cell according to an embodiment of the present invention;

FIG. 7 is a diagram showing transmission corresponding to each time cell in the embodiment of the present invention;

FIG. 8 is a fifth diagram illustrating transmission corresponding to each time cell according to an embodiment of the present invention;

FIG. 9 is a second flow chart of a method for determining beam information according to an embodiment of the invention;

fig. 10 shows one of the block diagrams of the configuration of the beam information determining apparatus of the embodiment of the present application;

fig. 11 shows a second block diagram of the configuration of the beam information determining apparatus according to the embodiment of the present application;

fig. 12 shows one of block diagrams of a determination apparatus of beam information of the embodiment of the present application;

fig. 13 shows a second block diagram of the beam information determining apparatus according to the embodiment of the present application.

Detailed Description

The technical scheme provided by the embodiment of the application can be applied to various systems. For example, applicable systems may be global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division synchronous CDMA (Time Division Synchronous Code Division Multiple Access, TD-SCDMA), general packet Radio service (general packet Radio service, GPRS), long term evolution (Long Term Evolution, LTE) including TD-LTE and FDD LTE, long term evolution-advanced (Long Term Evolution Advanced, LTE-a), universal mobile system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability For Microwave Access, wiMAX), new air interface (New Radio, NR) systems, and the like. Terminal devices and network devices are included in these various systems. Core network parts may also be included in the system, such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS/5 GC), etc.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12, a relay system (or RIS system) 13. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an Ultra-mobile personal Computer (Ultra-Mobile Personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In order to enable those skilled in the art to better understand the embodiments of the present application, the following description is provided.

1. The intelligent super surface (Reconfigurable Intelligent Surface, RIS) is a candidate technology of 6G, and has the characteristics of low cost, low energy consumption, programmability, easy deployment and the like. RIS is an electromagnetically active communication-capable surface, which is composed of a large-scale device array and an array control module, wherein the array control module can be used for controlling the response of each device unit to wireless signals, such as amplitude, phase, frequency and polarization, and a specific wave beam propagation characteristic is formed macroscopically through the mutual superposition of the wireless response signals of the device units on the large-scale device array, so that a controllable intelligent wireless environment is formed.

The relay system comprises an intelligent relay system (smart repeater) in NR or a network-controlled relay system (network-controlled repeaters), and further comprises a relay system used for forwarding network side signals in other systems, so that a relay service can be provided for a terminal at the network side coverage edge or outside the network side coverage, and the system performance is improved.

2. In NR systems, particularly in the high frequency range, beamforming techniques are used for the transmission of physical channels or physical signals. During transmission, the network side informs the terminal of the beam used by a certain physical channel or signal through the beam indication, and accordingly the terminal can determine a corresponding sending or receiving filter to receive or send the corresponding physical channel or signal according to the indication of the network side.

In the physical layer protocol, QCL parameters of type D are used to characterize the beam. QCL parameters are used to indicate whether the large scale parameters between 2 reference signals are the same, and the large scale parameters include: doppler shift, doppler spread, average delay, delay spread, and spatial receive filter parameters. Four types of QCL parameters are defined:

"type A": { Doppler shift, doppler spread, average delay, delay spread };

"type B": { Doppler shift, doppler spread };

"type C": { Doppler shift, average delay };

"type D": { spatial reception filter parameters }.

If the two reference signals are quasi co-located (QCL) with respect to type D, it means that the beams used by the two reference signals are identical.

Each TCI state configuration includes one or two QCL parameters, the two QCL parameters being of different types when indicated, such as one QCL parameter being Type a and the other QCL parameter being Type D, by transmitting a configuration indication (Transmission Configuration Indicator, TCI) state indication to indicate a Quasi co-location (QCL) relationship between reference signals. Each QCL parameter configuration contains a reference signal, also called source reference signal. For example, the TCI state configured for PDSCH includes 2 QCL parameters, which are respectively the channel state information reference signal (CSI-RS Resource Indicator, CSI-RS) 1 of Type a and the CSI-RS 2 of Type D, and the demodulation reference signal (Demodulation Reference Signal, DMRS) representing PDSCH is the same as the doppler shift, doppler spread, average delay, delay spread parameters of CSI-RS 1 and the spatial reception filtering parameters (i.e., beam information) of CSI-RS 2.

Each physical channel or signal may contain at most 2 TCI states, i.e. beams corresponding to 2 links (e.g. 2 transmission point to terminal links).

By means of the beam indication method of NR, the terminal can learn which physical channel or signal beam and which source reference signal are the same, i.e. obtain relative beam information, but cannot obtain absolute beam information. For example, the source reference signal may be transmitted using a single beam or using multiple composite beams, which the terminal cannot distinguish, but is considered identical to the source reference signal. In the RIS system, the reference signal sent by the base station can be received by the terminal, and the same reference signal sent by the base station can be received by the terminal after being forwarded by the RIS, wherein the reference signal and the reference signal correspond to the same reference signal but correspond to different beams. According to the prior art, a terminal is unable to distinguish between different beam information of the same source reference signal. Thus, existing beam pointing mechanisms are not directly applicable to RIS systems.

As shown in fig. 2, an embodiment of the present invention provides a method for determining beam information, including:

step 201: the terminal acquires a plurality of quasi-co-located QCL parameter configurations of a reference signal, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signal.

Optionally, the terminal may determine a plurality of QCL parameter configurations of the reference signal according to beam measurement results of the reference signal over at least two measurement time units, where a beam measurement result of each measurement resource corresponds to one QCL parameter of the reference signal. For example, when beam measurement is performed, the network side configures a plurality of measurement time units to transmit the same reference signal set, and QCL parameters of each reference signal may be the same or different. When the QCL parameters are the same, the QCL parameters are used for the terminal to scan the receiving wave beam, namely training a receiving filter of the terminal; the QCL parameters are not simultaneously used for transmitting beam scanning at the network side, the terminal can report the reference signal index corresponding to the optimal beam and the corresponding measured value according to the reference signal index, and the invention does not limit how the QCL parameters are configured. Accordingly, one reference signal is transmitted in a plurality of measurement time units, and the terminal may determine a plurality of QCL parameters of one reference signal. The QCL parameters are further used for QCL parameters of channels or signals in subsequent transmission, that is, the terminal obtains a plurality of QCL parameter configurations of the reference signals according to measurement reporting.

Optionally, the terminal may further obtain a plurality of QCL parameter configurations of the reference signal configured by the relay system or the RIS system. For example, the network side configures a plurality of QCL parameter configurations of one reference signal through RRC signaling and/or MAC-CE signaling, and each QCL parameter configuration may be QCL with other reference signals or QCL parameters of other reference signals. For example, CSI-RS 5 has a total of 3 QCL parameters, wherein the first QCL parameter and SSB 2 are for QCL-TypeA and QCL-TypeD QCL, the second QCL parameter and CSI-RS 1 are for QCL-TypeD QCL, and the third QCL parameter and SSB 8 are for QCL-TypeB QCL. For another example, CSI-RS 11 has a total of 2 QCL parameters, where the first QCL parameter is QCL with the 2 nd QCL parameter of CSI-RS 5 and the second QCL parameter is QCL with the first QCL parameter of SSB 7. In the embodiment of the present invention, a QCL parameter configuration may include one type of QCL parameter (e.g., QCL-type parameter) or a set of QCL parameters (e.g., QCL-type a and QCL-type parameter), which is not limited in this aspect of the present invention.

Step 202: the terminal determines at least one target quasi co-located QCL parameter in a plurality of QCL parameters of the reference signal according to a predefined rule or an indication of network side equipment;

Optionally, the time unit is a time slot or a symbol, etc.

In addition, the QCL parameters described above can also be described as QCL characteristics, both of which are equivalent.

For example, the target time unit includes a time unit for signal transmission between the terminal and the network side device and/or the first node, where the first node is configured to transmit with the terminal and/or the network side device.

Optionally, the transmission information corresponds to the QCL parameters one by one;

in the embodiment of the present invention, the predefined rule may be that different transmission information (such as different time units) respectively corresponds to different QCL characteristics of one source reference signal, and the same transmission information (such as one time unit) corresponds to one QCL characteristic of one source reference signal.

The above-mentioned transmission time unit (hereinafter, simply referred to as a time unit) is determined according to a resource transmission pattern or a slot format configured by the network side. For example, the resource transmission pattern or the time slot format configured on the network side includes two time units, wherein one source reference signal has 3 QCL characteristics, indexes are respectively 0,1 and 2, and a first time unit corresponds to 1 and a second time unit corresponds to 0; other examples are not limited and the number of time units and QCL characteristics may not be the same. For another example, the transmission pattern or the slot format includes 3 time units, or one period includes 3 time units, the first time unit corresponds to 0, the second time unit corresponds to 1, and the third time unit corresponds to 2; alternatively, the first time cell corresponds to 1, the second time cell corresponds to 0, and the QCL characteristic of the third time cell is a superposition of the QCL characteristics of the first time cell and the second time cell. In addition, in the embodiment of the present application, some of the time units may have no corresponding QCL characteristics or may not receive.

In addition, in the embodiment of the present application, the number of QCL parameters of the same reference signal may be determined according to the number of time units included in the resource transmission pattern or the slot format, for example, the resource transmission pattern or the slot format configured by the network side includes two time units, and each time unit may correspond to one QCL parameter of the same reference signal, that is, it is determined that the reference signal has two QCL parameters corresponding to different time units.

Optionally, each QCL parameter of the reference signal corresponds to one resource index information in the beam measurement report. In the embodiment of the invention, the plurality of QCL parameters of the same reference signal correspond to the plurality of measurements of the same reference signal in the beam measurement report, and the index of the QCL characteristics is the same as the resource setting index or the resource set index or the CSI resource index in the measurement report.

For example, the network side configures N (N is a positive integer) QCL parameter configurations of one reference signal through RRC signaling and/or MAC-CE signaling, and each QCL parameter configuration may be QCL with other reference signals or QCL parameters of other reference signals. The network side further indicates one or more QCL parameter indexes (e.g. 1,2,3, …, N) therein for transmission of PDSCH through the QCL parameter indication information.

For example, the QCL parameter indication information may indicate QCL parameters corresponding to all TCI states in one code point, or may indicate QCL parameters corresponding to one or more TCI states in one code point.

Optionally, the TCI indication information is configured to indicate a TCI state configured for the terminal and an index of a QCL parameter that is effective in at least one QCL parameter corresponding to the TCI state.

Here, the QCL parameters of the same reference signal correspond to the measurements of the same reference signal in the beam measurement result, and the index of the QCL characteristic is the same as the resource setting index or the resource set index or the CSI resource index in the beam measurement report.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

In the embodiment of the present invention, the first node may be a node corresponding to an RIS system, or may be a node corresponding to a relay system, such as a smart repeater.

the preset reporting mode comprises at least one of the following steps:

reporting a beam measurement result corresponding to a first target measurement resource according to a target value of a plurality of measurement resources of the reference signal on each measurement time unit, wherein the target value is obtained according to the sum of values of target parameters corresponding to the plurality of measurement resources, the target parameters comprise at least one of layer 1 reference signal received power L1-RSRP and layer 1 signal to interference plus noise ratio L1-SINR, the target value corresponding to the first target measurement resource is positioned at the first N bits in a target ordering result, and the target ordering result is obtained after the target values of the plurality of measurement resources on the measurement time unit are ordered according to the order from big to small; for example, according to the sum sequence of the measurement results of 2 time units, selecting and reporting the CSI-RS with better quality;

Optionally, the reference measurement time unit is any one or more of the measurement time units. Reporting, for example, according to the measurement result of the second measurement time unit in each period, where the network side looks at the quality of the channel between the RIS-UE more heavily; or reporting according to the measurement result of the first time unit in each period, and the network side looks at the channel quality between the BS and the UE more heavily.

Optionally, the terminal reports CSI-RS with one measurement result better and the other measurement result not lower than a certain threshold.

In the embodiment of the invention, the terminal reports K CRI or SSBRI and corresponding L1-RSRP or L1-SINR respectively aiming at each CSI resource setting or CSI resource set. Or the terminal reports K CRI or SSBRI in total aiming at all the CSI resource settings or the CSI resource sets, wherein each CRI or SSBRI corresponds to N L1-RSRP or N L1-SINR, N is the quantity of the CSI resource settings or the CSI resource sets, and K is the quantity of the reporting quantity.

The measurement time unit may be the same as or different from the transmission time unit in the correspondence relationship, and may be different in unit or granularity. The measurement reporting method may be defined as a plurality of measurement time units, where the same reference signal is sent in a plurality of measurement time units, for example, the same CSI-RS resource is configured in a plurality of CSI resource settings or a plurality of CSI resource sets.

In a first embodiment of the invention, the terminal determines at least one standard co-located QCL parameter of a reference signal according to predefined rules. Specific: the terminal determines that a reference signal has different QCL-TypeD characteristics in different time units according to a RIS transmission mode or a time slot/symbol format configured by a network side through a predefined rule.

For example, the transmission corresponding to each time unit in the RIS system is shown in fig. 3:

and transmitting by taking 2 time units as a period, wherein in each period, the UE receives a signal transmitted by the network side in a first time unit and receives a signal forwarded by the RIS in a second time unit. The source signals received by the UE are identical in both time units, except that the channel environments experienced by the source signals are different. The network side may perform beam indication in each time unit period, and in one beam period, one reference signal may have different QCL-Type D characteristics, for example, CSI-RS 1 sent by the network side is pointed by the network side to the UE direction when time unit 1 is received by the UE, and is pointed by the RIS to the UE direction when time unit 2 is received by the UE, as shown in fig. 4.

Indicated by TCI states, each comprising 2 QCL parameters, each comprising one source reference signal, the terminal may determine that the source reference signal in each QCL parameter acts on consecutive 2 time units and may have different beams according to predefined rules.

Optionally, the network side obtains different measurement results of the same source reference signal by the following method:

the network side configures CSI resource settings for the terminal, including CSI resource sets, and instructs the terminal to perform multi-time unit measurement through a high layer parameter, for example, informs the terminal that the same CSI resource set will be sent on both measurement time units. And the terminal performs combined reporting according to the measurement results of the two measurement time units. The criteria or reporting amount employed in the combined report may be at least one of:

first kind: reporting a beam measurement result corresponding to a first target measurement resource according to the sum of target parameters of a plurality of measurement resources of the reference signal on each measurement time unit, wherein the target parameters comprise at least one of layer 1 reference signal receiving power L1-RSRP and layer 1 signal-to-interference and noise ratio L1-SINR; for example, according to the sum sequence of the measurement results of 2 time units, selecting and reporting the CSI-RS with better quality;

Second kind: according to the relation between the target parameters of the plurality of measurement resources of the reference signal on each measurement time unit and a preset threshold value, the beam measurement result corresponding to the second target measurement resource is obtained, and the target parameters of the second target measurement resource on each measurement time unit are larger than the preset threshold value;

third kind: and reporting beam measurement results corresponding to a third target measurement resource in the plurality of measurement resources of the reference signal, wherein the third target measurement resource is the measurement resource corresponding to the reference measurement time unit in the at least two measurement time units. Reporting, for example, according to the measurement result of the second measurement time unit in each period, where the network side looks at the quality of the channel between the RIS-UE more heavily; or reporting according to the measurement result of the first time unit in each period, and the network side looks at the channel quality between the BS and the UE more heavily.

When the network side configures N CSI resource settings or N CSI resource sets, the terminal reports each CSI resource setting or CSI resource set, for example, reports K CRI or SSBRI and corresponding L1-RSRP or L1-SINR for each CSI resource setting or each CSI resource set, respectively. Or the terminal reports K CRI or SSBRI for all the CSI resource settings or the CSI resource sets, wherein each CRI or SSBRI corresponds to N L1-RSRP or N L1-SINR and corresponds to different measurement results of the same reference signal in a plurality of CSI resource settings or CSI resource sets. Because multiple CSI resource settings or multiple sets of CSI resources are used for multiple measurement time units or multiple QCL characteristic measurements, different beams are typically used to transmit the same reference signal (CSI-RS resource or SSB resource), or the parameter "repetition" is configured to "off", i.e. not using a repeated transmission.

After obtaining the measurement result of the terminal, the network side can use the measurement result for subsequent beam indication.

Optionally, the beam indication process and the beam measurement reporting process are corresponding, if N CSI resource settings or N CSI resource sets are configured in the measurement reporting, and are used for measuring multiple QCL characteristics of the same reference signal, then the terminal respectively corresponds to N QCL characteristics in the beam measurement reporting according to the reporting sequence of the N CSI resource settings or the N CSI resource sets, that is, the sequence or index of the QCL characteristics depends on the index of the corresponding CSI resource settings or CSI resource sets (or the relative index in the CSI resource sets associated with one reporting setting), that is, the QCL characteristics correspond to multiple measurements of the same reference signal in the beam measurement reporting, and the index of the QCL characteristics is the same as the resource setting index or the resource set index in the measurement reporting.

For another example, the transmission corresponding to each time unit in the RIS system may also be as shown in fig. 5, where still 2 time units are used as periods, and each time unit of the UE can receive the signal sent by the network side. In each period, the UE receives the signal sent by the network side in the first time unit, and receives the signal sent by the network side and forwarded by the RIS in the second time unit, i.e. the composite signal equivalent to 2 paths, and can consider the 2 links as multipath. In this case, the beam pointing method is similar to the transmission case of fig. 3, except that when beam measurement reporting is performed, the reference signal of the first time unit is transmitted by the network side, and the reference signal of the second time unit is transmitted (forwarded) by both the network side and the RIS.

The number of time units in one cycle may be 3 or more, which is not limited by the embodiment of the present invention. At this time, schematic diagrams of the transmission corresponding to each time unit in the RIS system may also be shown in fig. 6 to 8. It should be noted that, in the schematic diagram, only the transceiving behavior of the terminal side is concerned, and the signals of the RIS receiving network side are not all drawn. In fig. 6 to 8, the transmission period is 3 time units. In fig. 6, for time cell 3 and time cell 6, the QCL characteristics received by the terminal are the sum of the QCL characteristics of the first 2 time cells. In fig. 7 and 8, the terminal does not have QCL characteristics or does not receive for a part of the time unit.

The terminal may also determine QCL characteristics according to the number of time units contained in the transmission pattern or slot format, for example:

if the transmission pattern or the slot format includes 2 time units, or one period includes 2 time units, each time unit corresponds to one QCL characteristic;

if the transmission pattern or the slot format includes 3 time units, or one period includes 3 time units, the QCL characteristic of one time unit is a superposition of QCL characteristics of other 2 time units, for example, one QCL characteristic is a beam of BS- > UE and one QCL characteristic is a beam of RIS- > UE, and the superposed beam represents a beam that the terminal receives both BS and RIS transmissions; or some time units have no QCL characteristics or do not receive;

Further, the time units may be symbols or time slots, etc.

The period may also be in a periodic form during a period of time, for example, the network side schedules the terminal to perform Semi-persistent RIS transmission, or Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) transmission, and may be sent in a periodic form after receiving the activation command and before receiving the deactivation command.

In a second embodiment of the present invention, the network side dynamically indicates at least one standard co-located QCL parameter of the same reference signal. The network side can dynamically indicate which QCL-Type D characteristic of the reference signal to use. When the beam measurement reporting is performed, the transmission behavior of each time unit is consistent with the subsequent transmission. For example, when the measurement is reported, the network side respectively enables the terminal to measure the measurement results under the conditions that the CSI-RS is transmitted through the network side, forwarded through the RIS, transmitted through the network side and the RIS, and then respectively indicates which QCL parameter is adopted for transmitting by the CSI-RS according to the scheduling condition. For the same reference signal, each QCL parameter corresponds to a number or index, for example, the QCL parameter index of the CSI-RS sent by the network side is 1, the QCL parameter index of the CSI-RS forwarded by the RIS is 2, and the QCL parameter index of the CSI-RS jointly sent by the network side and the RIS is 3. Equivalent to defining lower level beam (QCL parameters of other types as well) information under the QCL parameters.

The method is suitable for the condition that the network side does not carry out RIS transmission in a periodic mode, and can flexibly change the scheduling pattern of the network side and improve the scheduling flexibility. For example, the network side may schedule the terminal to receive the RIS signal, to receive the network side information, to not receive any signal, to receive the network side signal, etc. in consecutive downlink time units. The TCI state may be indicated separately for each time cell.

Specifically, as a first alternative implementation: QCL parameter indication (indicating QCL characteristics of one source reference signal by QCL parameter indication) is performed in the TCI state field:

for example, each code point (codepoint) in the DCI is associated with not only the TCI state, but also the nth QCL characteristic in the QCL parameter, with 4 codepoints, the downlink TCI state indication being shown in table 1, for example:

TABLE 1

Codepoint	TCI state combination	QCL parametersIndication of
			00	TCI 3，TCI 8	0
01	TCI 101	1
			10	TCI 57	1
11	TCI 88，TCI 23	2

The QCL parameters indicate what QCL characteristics are in effect for indicating the QCL parameters in the TCI state. Wherein 0,1 and 2 indicate the first, second and third QCL characteristics, respectively. The indication process satisfies the following features:

the number of QCL parameter indications may be 1, 2, 3, 4 or more;

the QCL parameter indication may be multiple characteristics of the source reference signal corresponding to a certain qcl_type parameter, or may be characteristic indications of other types of QCL parameters, such as qcl_type a, qcl_type b, qcl_type c, and the like, as shown in table 2. For another example, in table 2, qcl_type corresponding to a code point of '01' indicates 0,1, which indicates that both indications are simultaneously validated, for example, the terminal is instructed to receive a signal sent by the network side and simultaneously receive a signal forwarded by the RIS.

TABLE 2

In addition, in this implementation manner, each TCI state may correspond to one QCL parameter indication, or all TCI states may correspond to the same QCL parameter indication, table 1 is all TCI states (e.g., 2 TCI states in one TCI state combination), table 3 shows a case that each TCI state corresponds to one QCL indication, in table 3, QCL parameter indication 1, QCL parameter indication 2 and QCL parameter indication 3 respectively correspond to 3 TCI states of each codepoint, and each QCL parameter indication corresponds to one TCI state. When the number of TCI states of a codepoint is less than 3, e.g., 1 or 2 TCI states, then the 2/3 th QCL parameter indicates or the 3 rd QCL parameter indicates reservation (i.e., no practical meaning). I.e. the number of QCL parameter indications is determined by the maximum number of TCIs that the codepoint can indicate, if there are 2 TCI states, there are 2 QCL parameter indications, or the number of QCL parameter indications is predefined in the protocol, e.g. 4, the number actually used is determined by the number of TCIs indicated by the corresponding codepoint, if the codepoint indicates N TCI states, the first N QCL parameter indications are valid. For example, in table 4, the number of QCL indications is predefined by the protocol (e.g., 4), and all codepoints in the present slot indicate no more than 3 TCI states, then the QCL parameters of all codepoints indicate a 4 reservation. In addition, each QCL parameter indication may further include various types of QCL parameter indications, i.e., a combination of table 2 and table 3, including both a plurality of QCL parameter indications and an indication of each QCL type, as shown in table 5. Wherein QCL indicates 1 for the first TCI state in the codepoint and QCL indicates 2 for the second TCI state in the codepoint.

When the uplink and downlink TCI states are indicated respectively, the uplink and downlink TCI states may correspond to the QCL indications respectively.

TABLE 3 Table 3

TABLE 4 Table 4

TABLE 5

In this implementation, the network side configures multiple QCL parameter configurations of one reference signal through RRC signaling and/or MAC-CE signaling, and each QCL parameter configuration may be QCL with other reference signals or QCL parameters of other reference signals. The QCL parameters are configured in conjunction with TCI states, such as:

/>

wherein each QCL Type (QCL-Type 1 or QCL-Type 2) corresponds to a plurality of QCL-info. For example, at most N QCL-info are configured for each QCL type, and when the QCL parameter indication is performed by using DCI signaling, the QCL parameter index is 0,1,2, …, N-1.

Alternatively, the QCL-info are arranged at a higher parameter level than the TCI-State, for example in a TCI State resource pool:

/>

the above configuration indicates that QCL indications are applicable for all TCI states. Multiple QCL-Info's may also be configured in the TCI state, as shown below, for all QCL types. Since both QCL-Indicator and QCL-Type1/QCL-Type2 contain QCL-Info, only QCL Type (typeA, typeB, typeC, typeD) can be configured in QCL-Type1/QCL-Type 2.

In the present invention, multiple QCL-Info configurations may also be configured within other higher layer parameters. Furthermore, the above signaling configuration is applicable to other embodiments or implementations.

In addition, QCL-Indicator or QCL-Info may also contain QCL parameter indication indices for other RSs, e.g.,

as a second alternative implementation: QCL parameter indication (indicating QCL characteristics of one source reference signal by QCL parameter indication) is performed in an information field (new information field) other than the TCI state field;

for example, a new information field is used only for QCL indications, as shown in tables 6 to 8. Even if the TCI field is not used, the QCL indication should work together with the TCI state indication, e.g. the indicated TCI state and the indicated QCL indication are corresponding, e.g. the number of TCI states in the TCI combination indicated by the TCI field and the number of QCL indications indicated by the new information field (e.g. the first information field) are equal and correspond one to one; or establishing a corresponding relation between the QCL indications and the TCI state indications according to a predefined rule, wherein the QCL indications comprise 4 QCL indications, namely QCL_Type A indications corresponding to the TCI state of the first indication, QCL_Type D indications of the TCI state of the first indication, QCL_Type A indications of the TCI state of the second indication, and QCL_Type D indications of the TCI state of the second indication. Further, the indicated QCL indication is a QCL indication corresponding to the QCL parameter in the indicated TCI state.

In this implementation, which TCI state or which QCL parameter type needs or does not need the corresponding QCL indication may also be configured by the higher-layer parameters, and when the corresponding QCL indication is needed, the corresponding QCL indication is included in the DCI, otherwise, the corresponding QCL indication is not included.

TABLE 6

Codepoint	QCL indication
		00	0
01	1
		10	1
11	2

TABLE 7

/>

TABLE 8

Codepoint	QCL indication 1	QCL indication 2	QCL indication 3
				00	0	2	0
01	1	-	-
				10	1	-	-
11	2	0	-

As a third alternative implementation: performing TCI indication (indication of multiple QCL characteristics implementing one source reference signal by TCI indication) in a TCI state field;

a similar function may be implemented using TCI indications, instead of indicating multiple QCL characteristics of one source reference signal by QCL parameter indications. For example, a plurality of QCL parameters, e.g., containing 3 or 4 QCL parameters, are configured for each TCI state by higher layer signaling. The QCL parameters corresponding to the same TCI state may be further associated with the same reference signal, e.g., QCL1, QCL2 and QCL3 in QCL2 and QCL3 each correspond to CSI-RS2, but since configured under different QCL parameters, the large-scale parameter information representing the two may be different. Accordingly, in dynamically indicating the TCI state, it may be further indicated which QCL parameter or parameters of the TCI state are in effect, e.g. the signaling indication is shown in table 9. '0', '1', '2' denote the first QCL parameter, the second QCL parameter and the third QCL parameter, respectively, in the TCI state. Similarly, each TCI state may correspond to one TCI indication. In this case, the TCI state configuration may contain QCL parameters of the same QCL type, as are the corresponding source reference signals. The indication process also needs to be associated with the beam measurement reporting process, so that the terminal can determine that each TCI indication or each QCL indication corresponds to a measurement result of a source reference signal in the beam measurement process, and further determine that the same source reference signal corresponds to different receiving or transmitting filters.

TABLE 9

Codepoint	TCI state combination	TCI indication 1	TCI indication 2
				00	TCI 3，TCI 8	0	1
01	TCI 101	1	0,1
				10	TCI 57	1	1
11	TCI 88，TCI 23	2	2

In addition, when the RIS serves as a relay, beam information indicated to the terminal multi-hop channel is required. It is therefore necessary to design a suitable beam pointing scheme for the RIS system so that the terminal can obtain the correct beam information.

Based on this, the method of the embodiment of the present invention, the indication of the network side device further includes: first information;

the first information is used for indicating one of the following:

a plurality of sets of TCI states, each set of TCI states corresponding to a transmission time unit (also referred to as a time unit) or a one-hop link; optionally, each set of TCI states corresponds to the same TCI configuration or a different TCI configuration;

the method comprises the steps of determining a first group of TCI states and a regulation matrix codebook corresponding to the first group of TCI states, wherein the regulation matrix codebook is used for determining a second group of TCI states based on the first group of TCI states, and each codeword is one codeword in a fixed codebook.

In a third embodiment of the present invention, as can be seen from fig. 3 and fig. 5, the network side may use different RIS transmission modes or slot/symbol formats for the terminal to transmit, and in order to enable the terminal to obtain an appropriate TCI status indication, a TCI indication method for each slot/symbol or transmission needs to be designed.

One approach is to employ multiple sets of TCI state indication methods, e.g., one TCI state indication contains 2 sets of TCI states, each set containing one TCI state combination, i.e., one or more TCI states. An indication method is shown at 10. Each set of TCI states may correspond to a one-hop channel, or to a time unit. For example, when the terminal receives the RIS-forwarded signal sent by the network side, the transmission sent by the network side to the RIS may be defined as a one-hop transmission, and the transmission forwarded by the RIS to the UE may be defined as a one-hop transmission, where each hop transmission corresponds to a set of TCI states. For another example, a TCI indication indicates the TCI state for 2 time units. The first set of TCI states corresponds to a first time cell and the second set of TCI states corresponds to a second time cell. Each stage of TCI state may correspond to a TCI combination, and different groups of TCI states may be from the same TCI state pool (i.e., up to M TCI states configured by RRC signaling, and may be further activated using MAC-CE signaling), or from different TCI state pools. Also possible in combination with embodiments 1 and 2, the same source reference signals contained in different TCI states may correspond to different large scale parameters or to different QCL characteristics.

Or, the network side does not indicate the second set of TCI states, but indicates the TCI states (i.e. the first set of TCI states) sent by the network side, and the regulatory matrix at the RIS, so that the terminal presumes the second set of TCI states according to the first set of TCI states and the regulatory matrix, as shown in table 11, for example, in a signaling indication manner.

Unlike TCI status indication, the RIS regulatory matrix may be absolute beam information, e.g., defining a fixed codebook containing N precoding codewords from which a particular precoding codeword may be indicated for processing signals transmitted by the network side. In the RIS regulatory matrix indication, the source reference signal need not be defined. In this way, the terminal may determine, according to a set of TCI states indicated by the network side and the RIS regulatory matrix indication, a second set of TCI states of the signal after the RIS forwarding. Note that the correspondence between the TCI state and the regulation matrix in the second set may be trained by the terminal through beam measurement, or may be preconfigured to the terminal by the network side, which is not limited in the present invention.

Table 10

Codepoint	First set of TCI states	Second set of TCI states
			00	TCI 3，TCI 8	TCI 13，TCI 81
01	TCI 101	TCI 11，TCI 23
			10	TCI 57	TCI 51
11	TCI 88，TCI 23	TCI 24

TABLE 11

In this embodiment, the terminal determines TCI states of different time units or different links according to the indication of the network side, so as to achieve the purpose of supporting TCI state joint indication of the multi-hop channel.

As shown in fig. 9, the embodiment of the present invention further provides a method for determining beam information, including:

step 901: the network side equipment determines a plurality of quasi-co-located QCL parameter configurations of the reference signals, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signals.

Optionally, the network side device may determine a plurality of QCL parameter configurations of the reference signal according to beam measurement results of the reference signal on at least two measurement time units, where a beam measurement result of each measurement resource corresponds to one QCL parameter of the reference signal. For example, when beam measurement is performed, the network side configures a plurality of measurement time units to transmit the same reference signal set, and QCL parameters of each reference signal may be the same or different. When the QCL parameters are the same, the QCL parameters are used for the terminal to scan the receiving wave beam, namely training a receiving filter of the terminal; the QCL parameters are not simultaneously used for transmitting beam scanning at the network side, the terminal can report the reference signal index corresponding to the optimal beam and the corresponding measured value according to the reference signal index, and the invention does not limit how the QCL parameters are configured. Accordingly, one reference signal is transmitted in a plurality of measurement time units, and the terminal may determine a plurality of QCL parameters of one reference signal. The QCL parameters are further used for QCL parameters of channels or signals in subsequent transmission, that is, the terminal obtains a plurality of QCL parameter configurations of the reference signals according to measurement reporting.

The network side device may also obtain a plurality of quasi co-located QCL parameter configurations of the reference signal from the relay system or the RIS system. For example, the network side configures a plurality of QCL parameter configurations of one reference signal through RRC signaling and/or MAC-CE signaling, and each QCL parameter configuration may be QCL with other reference signals or QCL parameters of other reference signals. For example, CSI-RS 5 has a total of 3 QCL parameters, wherein the first QCL parameter and SSB 2 are for QCL-TypeA and QCL-TypeD QCL, the second QCL parameter and CSI-RS 1 are for QCL-TypeD QCL, and the third QCL parameter and SSB 8 are for QCL-TypeB QCL. For another example, CSI-RS 11 has a total of 2 QCL parameters, where the first QCL parameter is QCL with the 2 nd QCL parameter of CSI-RS 5 and the second QCL parameter is QCL with the first QCL parameter of SSB 7. In the embodiment of the present invention, a QCL parameter configuration may include one type of QCL parameter (e.g., QCL-type parameter) or a set of QCL parameters (e.g., QCL-type a and QCL-type parameter), which is not limited in this aspect of the present invention.

Step 902: the network side equipment indicates at least one target QCL parameter in a plurality of QCL parameters to the terminal;

In the embodiment of the invention, network side equipment (such as a base station) indicates at least one target QCL parameter in a plurality of QCL parameters to a terminal; the at least one target QCL parameter is associated with a time unit, a scheduled transmission, a transmission channel or a transmission signal, so that the same reference signal (or a source reference signal) may have different QCL parameters for different time units, transmissions, channels or signals, so that a terminal can select corresponding QCL parameters for different transmission paths in an RIS system or a relay system, that is, the method for determining beam information can be well applied to the RIS system or the relay system.

the QCL parameter indication information includes one or more QCL parameter indexes of one QCL parameter type, or includes indexes of QCL parameters respectively corresponding to at least two QCL parameter types. Each QCL parameter index corresponds to one QCL parameter

Optionally, in the method of the embodiment of the present invention, the index of the QCL parameter is associated with resource index information in beam measurement report.

Optionally, in the method of the embodiment of the present invention, the resource index information meets at least one of the following:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

Optionally, the method further comprises:

It should be noted that, the method embodiment of the network side device side is a method embodiment corresponding to the method embodiment of the terminal side, and will not be described herein.

As shown in fig. 10, the embodiment of the present invention further provides a device for determining beam information, which is applied to a terminal, and includes a memory 1020, a transceiver 1000, and a processor 1010:

A memory 1020 for storing a computer program; a transceiver 1000 for transceiving data under the control of the processor 1010; a processor 1010 for reading the computer program in the memory 1020 and performing the following operations:

acquiring a plurality of quasi co-located QCL parameter configurations of a reference signal, wherein the QCL parameter configurations are used for configuring a plurality of QCL parameters of the reference signal;

As an alternative implementation, multiple quasi co-located QCL parameter configurations of the reference signal are acquired by the transceiver. For example, a plurality of QCL parameter configurations of the reference signal configured by the relay system or RIS system is acquired by the transceiver. As another alternative implementation, the processor determines a plurality of QCL parameter configurations of the reference signal based on beam measurements of the reference signal over at least two measurement time units, wherein the beam measurements of each of the measurement resources correspond to one QCL parameter of the reference signal.

and acquiring the QCL parameter indication information through a TCI field or a QCL indication information field in downlink control information DCI by using a transceiver.

and acquiring TCI indication information by using a transceiver through a TCI domain, wherein the TCI indication information is used for indicating a TCI state configured for the terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

according to the measurement resources of the reference signals on at least two measurement time units, carrying out beam measurement reporting by utilizing a transceiver according to a preset reporting mode;

the preset reporting mode comprises at least one of the following steps:

Optionally, the indication of the network side device further includes: first information;

the first information is used for indicating one of the following:

Wherein in fig. 10, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1010 and various circuits of memory represented by memory 1020, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1000 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 1030 may also be an interface capable of interfacing with an internal connection requiring device for a different user device including, but not limited to, a keypad, display, speaker, microphone, joystick, etc.

The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 in performing operations.

Alternatively, the processor 1010 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), which may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

As shown in fig. 11, the embodiment of the present invention further provides a device for determining beam information, which is applied to a network side device, and includes a memory 1120, a transceiver 1100, and a processor 1110:

a memory 1120 for storing a computer program; a transceiver 1100 for receiving and transmitting data under the control of the processor 1110; a processor 1110 for reading the computer program in the memory 1120 and performing the following operations:

the target QCL parameter is determined according to the association relation between the QCL parameter of the reference signal and the transmission information.

and transmitting the QCL parameter indication information through a TCI field or a QCL indication information field in the DCI by using a transceiver.

and transmitting TCI indication information by using a transceiver through a TCI domain, wherein the TCI indication information is used for indicating a TCI state configured for a terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

transmitting, with the transceiver, first information indicating one of:

acquiring beam measurements of a plurality of measurement resources of the reference signal over at least two measurement time units with a transceiver;

and determining a plurality of quasi co-located QCL parameters of the reference signal according to the beam measurement results, wherein the beam measurement result of each measurement resource corresponds to one QCL parameter of the reference signal.

Wherein in fig. 11, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1100 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 in performing operations.

The processor 1110 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiment for determining beam information, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

As shown in fig. 12, an embodiment of the present invention further provides a device for determining beam information, which is applied to a terminal, and includes:

a first obtaining unit 1201, configured to obtain a plurality of quasi co-located QCL parameter configurations of a reference signal, where the QCL parameter configurations are used to configure a plurality of QCL parameters of the reference signal;

a first determining unit 1202, configured to determine at least one target QCL parameter from among a plurality of QCL parameters of the reference signal according to a predefined rule or an instruction of a network side device;

Optionally, the first determining unit is configured to determine, according to a correspondence between QCL parameters of the reference signal and transmission information, at least one target QCL parameter corresponding to at least one target transmission information from among a plurality of QCL parameters of the reference signal;

Optionally, the first determining unit is configured to determine at least one standard co-located QCL parameter from among a plurality of QCL parameters of the reference signal according to QCL parameter indication information of the network side device, where the QCL parameter indication information includes one or more QCL parameter indexes of one QCL parameter type, or includes indexes of QCL parameters corresponding to at least two QCL parameter types respectively, and each QCL parameter index corresponds to one QCL parameter.

Optionally, the device of the embodiment of the present invention further includes:

a second obtaining unit, configured to obtain the QCL parameter indication information through a TCI field or a QCL indication information field in the downlink control information DCI.

and a third obtaining unit, configured to obtain, by using a TCI field, TCI indication information, where the TCI indication information is used to indicate a TCI state configured for the terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

the reporting unit is used for carrying out beam measurement reporting according to a preset reporting mode according to the measurement resources of the reference signal on at least two measurement time units;

the preset reporting mode comprises at least one of the following steps:

Optionally, in the apparatus of the embodiment of the present invention, the indication of the network side device further includes: first information;

the first information is used for indicating one of the following:

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiment for determining the beam information on the terminal side, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

As shown in fig. 13, an embodiment of the present invention further provides a device for determining beam information, which is applied to a network side device, and includes:

a second determining unit 1301 configured to determine a plurality of quasi co-located QCL parameter configurations of a reference signal, where the QCL parameter configurations are used to configure a plurality of QCL parameters of the reference signal;

an indicating unit 1302, configured to indicate at least one target QCL parameter from the plurality of QCL parameters to the terminal;

Optionally, the indicating unit is configured to indicate at least one target QCL parameter of the plurality of QCL parameters to the terminal through the QCL parameter indicating information;

And the first sending unit is used for sending the QCL parameter indication information through a TCI field or a QCL indication information field in the DCI.

and the second sending unit is used for sending TCI indication information through the TCI domain, wherein the TCI indication information is used for indicating a TCI state configured for the terminal and an index of at least one QCL parameter corresponding to the TCI state.

Optionally, the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

Optionally, the transmission link of the reference signal includes:

a transmission link between the terminal and the network side equipment;

A third transmitting unit, configured to transmit first information, where the first information is used to indicate one of the following:

Optionally, in the apparatus of the embodiment of the present invention, the fifth obtaining unit includes:

a first acquisition subunit, configured to acquire beam measurement results of a plurality of measurement resources of the reference signal over at least two measurement time units;

and the first determining subunit is used for determining a plurality of quasi co-located QCL parameter configurations of the reference signals according to beam measurement results, wherein the beam measurement result of each measurement resource corresponds to one QCL parameter of the reference signal.

It should be noted that, the above apparatus provided in this embodiment of the present application may implement all the method steps implemented in the method embodiment for determining the beam information on the network side device side, and may achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted herein.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In some embodiments of the present application, there is also provided a processor-readable storage medium storing program instructions for causing the processor to perform the steps of:

Or determining a plurality of quasi co-located QCL parameter configurations of a reference signal, the QCL parameter configurations being used to configure a plurality of QCL parameters of the reference signal;

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device (network side device) according to the embodiments of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (Long Term Evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method for determining beam information, comprising:

2. The method of claim 1, wherein the terminal determining at least one target QCL parameter among the plurality of QCL parameters of the reference signal according to a predefined rule, comprising:

3. The method according to claim 1 or 2, characterized in that the transmission time units in the transmission information are determined according to a network side configured resource transmission pattern or slot format.

4. The method of claim 1 or 2, wherein each QCL parameter of the reference signal corresponds to one resource index information in a beam measurement report.

5. The method of claim 1, wherein the determining, by the terminal, at least one target QCL parameter among the QCL parameters of the reference signal according to the indication of the network-side device, comprises:

6. The method of claim 5 wherein the QCL parameter indication information is used to indicate QCL parameter information in a TCI state for at least one transmission configuration indication in a code point.

7. The method according to claim 5 or 6, further comprising:

8. The method as recited in claim 5, further comprising:

9. The method of claim 4, wherein the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

10. The method of claim 9, wherein the transmission link of the reference signal comprises:

a transmission link between the terminal and the network side equipment;

11. The method as recited in claim 4, further comprising:

the preset reporting mode comprises at least one of the following steps:

12. The method of claim 1, wherein the indication of the network side device is further used to indicate one of:

13. A method for determining beam information, comprising:

the target QCL parameter indicated by the network side device is determined according to an association relationship between the QCL parameter of the reference signal and transmission information, where the transmission information includes at least one of a transmission time unit, scheduled transmission, a transmission channel and a transmission signal.

14. The method of claim 13, wherein the network side device indicates at least one target QCL parameter of a plurality of QCL parameters to a terminal, comprising:

15. The method of claim 14 wherein the QCL parameter indication information is used to indicate QCL parameter information in a TCI state for at least one transmission configuration indication in one code point.

16. The method according to claim 14 or 15, further comprising:

17. The method as recited in claim 14, further comprising:

18. The method of claim 14, wherein the index of the QCL parameters is associated with resource index information in beam measurement reporting.

19. The method of claim 18, wherein the resource index information satisfies at least one of:

different resource index information corresponds to different time units.

20. The method of claim 19, wherein the transmission link of the reference signal comprises:

a transmission link between the terminal and the network side equipment;

21. The method of claim 13, wherein the network side device determines a plurality of quasi co-sited QCL parameter configurations for the reference signal, comprising:

the network side equipment acquires beam measurement results of the reference signals on at least two measurement time units;

22. The method as recited in claim 13, further comprising:

23. A beam information determining device, applied to a terminal, characterized by comprising a memory, a transceiver and a processor:

24. The apparatus of claim 23, wherein the processor when executing the program further performs the steps of:

25. The apparatus of claim 24, wherein the transmission time units in the transmission information are determined according to a network-side configured resource transmission pattern or slot format.

26. The apparatus of claim 23, wherein the processor when executing the program further performs the steps of:

27. The apparatus of claim 26, wherein the QCL parameter indication information is used to indicate QCL parameter information in a TCI state for at least one transmission configuration indication in one code point.

28. The beam information determining device is applied to network side equipment and is characterized by comprising a memory, a transceiver and a processor:

29. The apparatus of claim 28, wherein the processor when executing the program further performs the steps of:

30. The apparatus of claim 29, wherein the QCL parameter indication information is used to indicate QCL parameter information in a TCI state for at least one transmission configuration indication in one code point.

31. A beam information determining apparatus, applied to a terminal, comprising:

32. A beam information determining apparatus, applied to a network side device, comprising:

the target QCL parameter is determined according to an association relationship between the QCL parameter of the reference signal and the transmission information.

33. A processor-readable storage medium storing program instructions for causing the processor to perform the steps of the method of determining beam information according to any one of claims 1 to 12 or the steps of the method of determining beam information according to any one of claims 13 to 22.